Re: Is the OR500 better then the Senao NL-2611 CB3?

try setting the fragementation threshold to 500
and see if it increase the speed.

then tweak it to the best settings.
i had once this problem with senao with only 10kBps max speed.

but when i change it to fragmentation to 500 it significantly increase
the speed to 60kBps


On 5/17/05, Eddie <[email protected]> wrote:
> Thanks for all the suggestions and sorry for not getting back sooner. I have not had time for to play with this project.
> 
> The AP has a few settings.
> 
> Fragmentation threshold: 2346
> RTS threshold: 2432
> Beacon period:100
> DTIM interval:1
> Multicast PM buffering: (checked on)
> Preamble type:  Long,Short,Both(Set to Long)
> 
> Basic rates (Mbit/s): (All checked for 1M, 2M, 5.5M, 11M)
> Supported rates (Mbit/s): (All checked for 1M, 2M, 5.5M, 11M)
> Transmission rate (Mbits/s): Automatic
> 
> What would be the suggested settings for my 9 mile link?
> 
> I also picked up some used RoamAbout Outdoor.
> http://www.enterasys.com/products/wireless/RBTED-xx/
> 
> They use the same Orinoco cards, but says it supports 11Mbs with my 24dB antenns for up to 25 miles.
> Does the RoamAbout have some magic that the OR500 does not to get faster speed with the same radios?
> 
> Thanks for all help.
> -Eddie
> 
> 
> On Thu, 28 Apr 2005 14:04:26 -0600, Tyler van Houwelingen wrote:
> 
> >suggestions:
> >
> >1. Set the modulation rate on both ends from auto to 2Mbps or 1Mbps
> >2. Try horizontal polarization on the antennas
> >3. I would take a look at your number of packets being retransmitted - my
> >guess is that they are getting hammered somewhere along the way.  If this is
> >the case, you can try other channels, but your best bet is to move the link
> >to 5GHz.  Your packets can be hammered, even if you are seeing good RSSI
> >4. run DRTCP on each client should help (changing to higher Rwin settings
> >should help)
> >
> >tyler
> >
> >
> >Tyler van Houwelingen
> >CEO and Founder
> >Azulstar Networks, Inc.
> >1051 Jackson, Grand Haven, MI 49417
> >1117 Rio Rancho Blvd 13, Rio Rancho, NM 87124
> >1-877-AZULSTAR
> >www.azulstar.com
> >----- Original Message -----
> >From: "Casey Halverson" <[email protected]>
> >To: "Eddie" <[email protected]>; "SeattleWireless Talk List"
> ><[email protected]>
> >Sent: Thursday, April 28, 2005 10:16 AM
> >Subject: RE: Is the OR500 better then the Senao NL-2611 CB3?
> >
> >
> >Could be due to timing issues (the orinoco bridges don't really have
> >this issue), or other settings that are different than the OR500's.
> >Keep in mind these were tuned to be wireless bridges, and your senao was
> >tuned to be a local LAN station.
> >
> >I would make sure the following is done on your new link:
> >
> >- Turn off ACK's
> >- Turn off retries
> >- Turn off flow control RTS/CTS
> >- Adjust fragmentation settings
> >- Turn off WEP
> >
> >Keep an eye on retries and lost packets.  While you will see some, it
> >should not be excessive.
> >
> >I do not know whats available to you as far as statistics, but 70% does
> >not help us much.  Please indicate the signal and noise levels in dBm.
> >
> >According to my calculations, assuming you had a clear path and radios
> >pretty close to the antenna, you should be coming in at -52.3dBm.  This
> >is considerably stronger than you were before.  You could have also
> >introduced some sort of multipath issue.
> >
> >
> >> -----Original Message-----
> >> From: [email protected]
> >> [mailto:[email protected]] On Behalf Of Eddie
> >> Sent: Wednesday, April 27, 2005 5:20 PM
> >> To: SeattleWireless Talk List
> >> Subject: Is the OR500 better then the Senao NL-2611 CB3?
> >>
> >> Hello,
> >>
> >> I have a strange problem. Since I can't get DSL out in the
> >> sticks, I have a 9 mile wireless 802.11b link. I use a set of
> >> Orinoco OR500 wireless bridges and some 24db directional
> >> antennas. The system is far more complex (ask if you need
> >> more details), but the long link is the one I am trying to
> >> upgrade.  Right now, I am getting 120- 130KBs over the long
> >> link. That is one FTP transfer. If I try to do two things at
> >> once, the OR500 slow way down. Sort of a one track mind
> >> thing. It's not perfect, but it's better then dial up and I
> >> have had zero problems with it over the year I have had it up.
> >>
> >> But I have a 3Mbs DSL line so I would like to upgrade the
> >> speed of the link. I picked up two Senao NL-2611 CB3. I set
> >> one to AP mode, and the other to client.
> >> Testing at home showed they peaked around 4.5Mbs. When I
> >> connected them to the antennas, it showed a 70% signal
> >> strength, but bandwidth maxes out at 30KBs.
> >> Changing the channel and messing with all the settings did nothing.
> >>
> >> Why would the higher power and better Senao have slower speeds?
> >>
> >> Thank you
> >> -Eddie
> >>
> >>
> >>
> >>
> >> _______________________________________________
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